tamerlan was run over by a car and his younger brother drove towards officers as they were trying to handcuff the 26-year- old. the uncle fears that the 26- year-old brother may have convinced hill to take part in the bombing plot. >> i'm relieved that he is alive, first of all for that there is now a chance to find out who was behind it? second of all, i stress that there is a chance for dzhokhar to seek forgiveness. >> this is a photo showing dzhokhar as he got out the boat last night on his own. it was clear once he was arrested that he was bleeding. he had been shot in the leg and neck and cbs is reporting now there are some questions whether that neck wound may have been self-inflick. >> watertown police chief is talking about those dramatic captures of the bombing. >> we are concerned he might have a device on his chest. he listed his shift to show us he didn't and people on-scene were able to take him into custody and get him to a hospital. >> in addition, to the infrared images we showed you police used a camera-equipped robot to check the boat. it was an emotional day in bos